//
// Created by MightyPork on 2022/08/20.
//

#ifndef FANCTL_FANCONTROL_H
#define FANCTL_FANCONTROL_H

#include <stdint.h>
#include "actuators.h"

void fancontrol_init();

/** this is bit-based: IN:OUT:BLIND */
enum ventilation_mode {
    VENT_MODE_OFF = 0,
    VENT_MODE_FREE = 1,
    VENT_MODE_OUT = 3,
    VENT_MODE_IN = 5,
    VENT_MODE_RECUP = 7,
};

enum recup_mode {
    /** stricly time based recuperation switching */
    RECUP_MODE_TIME = 0,
    /** Temperature-based recuperation switching
     * (switch direction when further blowing won't save energy) */
    RECUP_MODE_TEMP = 1,
};


struct FanControlState {
    /**
     * Power requested trough register or as the default value.
     * This value stays unchanged even if stopped, unlike gAct.power which reflects the actual output.
     */
    perc_t set_power;
    /**
     * rezim ventilace. Use fan_set_vent_mode() to change it!
     */
    enum ventilation_mode set_vent_mode;
    /** Status for the register */
    enum ventilation_mode instantaneous_vent_mode;

    /* sensors */
    bool valid_t_indoor;
    bool valid_t_outdoor;
    bool valid_t_inflow;
    bool valid_t_exhaust;
    bool valid_t_actual_in;
    bool valid_t_actual_out;

    cels_t t_indoor;
    cels_t t_outdoor;
    cels_t t_inflow;
    cels_t t_exhaust;

    uint16_t lastTempsSerial;
    cels_t t_actual_in;
    cels_t t_actual_out;

    secs_t real_recup_time_in;
    secs_t real_recup_time_out;

    // Private
    /**
     * like vent_mode, but if power is 0, becomes OFF
     */
    enum ventilation_mode effective_vent_mode;
    /**
     * skutecny aktualni pohyb motoru (zustava stejny, dokud ramp time nedosahne nuly)
     */
    enum motor_direction real_direction;
    /**
     * Poloha roletky, 0<->blind_time, inkrement/dekrement 1 za sekundu.
     * Pri zmene blind_time se musi hodnota aktualizovat, pokud je na doraze nebo za.
     */
    secs_t blind_position;
    /**
     * Cas chodu motoru v aktualnim smeru, inkrement 1 za sekundu.
     */
    secs_t run_time;
    /**
     * "stav chodu motoru". 0=stop, ramp_time = jede.
     */
    secs_t ramp;

    // helper counters that increment hour counters when overflow
    secs_t uptime_secs;
    hours_t motor_secs;

    secs_t uptime_hours;
    hours_t motor_hours;
};

extern struct FanControlState gState;

void fan_set_vent_mode(enum ventilation_mode mode);
void fan_set_power(perc_t power);

#endif //FANCTL_FANCONTROL_H